@book{Pausch:LastLecture,
  title     = "The Last Lecture",
  author    = "Randy Pausch",
  address   = "London",
  isbn      = "978-0-340-97850-4",
  origyear  = "2008",
  publisher = "Two Roads",
  year      = "2012",
}
@book{Yudkin:Sugar,
  title     = "Pure, White and Deadly",
  author    = "John Yudkin",
  address   = "London",
  isbn      = "978-0-241-25745-6",
  origyear  = "1972",
  publisher = "Penguin Random House",
  year      = "2016",
}